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Specific Types of Brain Dysfunction

By Juebin Huang, MD, PhD, Assistant Professor, Department of Neurology, Memory Impairment and Neurodegenerative Dementia (MIND) Center, University of Mississippi Medical Center

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Many functions of the brain are performed by several areas of the brain working together (networks), not by a single area in the brain. Damage to these networks can cause the following:

Dysarthria may be caused by damage to the brain stem or to the nerve fibers that connect the outer layer of the cerebrum (cerebral cortex) to the brain stem.

Usually, doctors can diagnose the type of dysfunction by examining the person. They ask questions designed to evaluate specific brain functions. Imaging tests, such as computed tomography (CT) and magnetic resonance imaging (MRI), are usually needed to identify the cause of the damage.